OVERVIEW: DPRK 2013 ANNOUNCED TEST

At 02.57.51 (UTC) on 12 February 2013, the CTBTO’s seismic network detected an unusual seismic event in the Democratic People’s Republic of Korea (DPRK), which measured 4.9 in magnitude. Later that morning, the DPRK announced that it had conducted a nuclear test. CTBTO Executive Secretary Tibor Tóth strongly condemned DPRK’s action as “a clear threat to international peace and security.” The event was registered by 94 seismic stations and two infrasound stations in the CTBTO’s network. The data processing and analysis are designed to weed out natural events and focus on those events that might be explosions, including nuclear explosions.